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SILC_STR_UI_XNSTRING NAME
        #define SILC_STR_UI_XNSTRING() ...
        #define SILC_STR_UI_XNSTRING_ALLOC() ...
DESCRIPTION
        Extended Unsigned string formatting. Second argument is the length of
        the string.

        Formatting:    SILC_STR_UI_XNSTRING(unsigned char *, SilcUInt32)
        Unformatting:  SILC_STR_UI_XNSTRING(unsigned char **, SilcUInt32)

        This type can be used to take arbitrary length string from the buffer
        by sending the requested amount of bytes as argument. This differs
        from *_STRING and *_NSTRING so that this doesn't try to find the
        length of the data from the buffer but the length of the data is
        sent as argument. This a handy way to unformat fixed length strings
        from the buffer without having the length of the string formatted
        in the buffer.

        _ALLOC routines automatically allocates memory for the variable sent
        as argument in unformatting.
SILC Buffer Format Interface silc_buffer_format silc_buffer_unformat silc_buffer_format_vp silc_buffer_unformat_vp silc_buffer_strformat SILC_STR_*_CHAR SILC_STR_*_SHORT SILC_STR_*_INT SILC_STR_*_INT64 SILC_STR_*_STRING SILC_STR_*_NSTRING SILC_STR_UI_XNSTRING SILC_STR_END SILC_STRFMT_END

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